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constructing Donor–Acceptor‑Linked cOFs Electrolytes to Regulate Electron Density and Accelerate the Li^(+)Migration in Quasi‑Solid‑State Battery

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Nano-Micro Letters 2025年第1期17卷 456-471页

作者： Genfu Zhao Hang ma conghui Zhang Yongxin Yang Shuyuan Yu Haiye Zhu Yongjiang Sun Hong Guo School of materials and Energy International Joint Research Center for Advanced Energy Materials of Yunnan ProvinceYunnan UniversityKunming 650091People’s Republic of China Yunnan Yuntianhua co. LtdR&D CenterKunming 650228People’s Republic of China Southwest United Graduate School Kunming 650091People’s Republic of China

Regulation the electronic density of solid-state electrolyte by donor–acceptor(D–A)system can achieve highly-selective Li^(+)transportation and conduction in solid-state Li metal *** study reports a high-performance solid-state electrolyte thorough D–A-linked covalent organic frameworks(cOFs)based on intramolecular charge transfer *** other reported cOFbased solid-state electrolyte,the developed concept with D–A-linked cOFs not only achieves electronic modulation to promote highly-selective Li^(+)migration and inhibit Li dendrite,but also offers a crucial opportunity to understand the role of electronic density in solid-state Li metal *** introduced strong electronegativity F-based ligand in cOF electrolyte results in highlyselective Li^(+)(transference number 0.83),high ionic conductivity(6.7×10^(-4)S cm^(−1)),excellent cyclic ability(1000 h)in Li metal symmetric cell and high-capacity retention in Li/LiFePO_(4)cell(90.8%for 300 cycles at 5c)than substituted c-and N-based *** is ascribed to outstanding D–A interaction between donor porphyrin and acceptor F atoms,which effectively expedites electron transferring from porphyrin to F-based ligand and enhances Li^(+)***,we anticipate that this work creates insight into the strategy for accelerating Li^(+)conduction in high-performance solid-state Li metal batteries through D–A system.

关键词： Electronic modulation engineering Donor-acceptor-linked covalent organic frameworks Quasi-solid-state Li metal battery

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Locally Enhanced Flow and Electric Fields Through a Tip Effect for Efficient Flow‑Electrode capacitive Deionization

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Nano-Micro Letters 2025年第2期17卷 1-17页

作者： Ziquan Wang Xiangfeng chen Yuan Zhang Jie ma Zhiqun Lin Amor Abdelkader maria‑magdalena Titirici Libo Deng college of chemistry and Environmental Engineering Shenzhen UniversityShenzhen 518060People’s Republic of China Research center for Environmental Functional materials College of Environmental Science and EngineeringTongji University1239 Siping RoadShanghai 200092People’s Republic of China Department of chemical and Biomolecular Engineering National University of SingaporeSingapore 117585Singapore Department of Engineering Faculty of Science and TechnologyBournemouth UniversityTalbot CampusFern BarrowPooleEngland BH125BBUK Institut de chimie de Nice UniversitéCôte d’AzurUMR CNRS 727228 Av.Valrose06108 NiceFrance Department of chemical Engineering Imperial College LondonSouth Kensington CampusExhibition RdLondon SW72AZUK

Low-electrode capacitive deionization(FcDI)is an emerging desalination technology with great potential for removal and/or recycling ions from a range of ***,it still suffers from inefficient charge transfer and ion transport kinetics due to weak turbulence and low electric intensity in flow electrodes,both restricted by the current ***,a new tip-array current collector(designated as T-cc)was developed to replace the conventional planar current collectors,which intensifies both the charge transfer and ion transport *** effects of tip arrays on flow and electric fields were studied by both computational simulations and electrochemical impedance spectroscopy,which revealed the reduction of ion transport barrier,charge transport barrier and internal *** the voltage increased from 1.0 to 1.5 and 2.0 V,the T-cc-based FcDI system(T-FcDI)exhibited average salt removal rates(ASRR)of 0.18,0.50,and 0.89μmol cm^(-2) min^(-1),respectively,which are 1.82,2.65,and 2.48 folds higher than that of the conventional serpentine current collectors,and 1.48,1.67,and 1.49 folds higher than that of the planar current ***,with the solid content in flow electrodes increased from 1 to 5 wt%,the ASRR for T-FcDI increased from 0.29 to 0.50μmol cm^(-2) min^(-1),which are 1.70 and 1.67 folds higher than that of the planar current ***,a salt removal efficiency of 99.89%was achieved with T-FcDI and the charge efficiency remained above 95%after 24 h of operation,thus showing its superior long-term stability.

关键词： Flow-electrode capacitive deionization current collector Tip effect Desalination

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Multi-dimensional Bi@c electrocatalyst for cr3+/cr2+ redox reaction boosting high-performance iron-chromium flow batteries

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Science china chemistry 2025年

作者： Min Wu Mingjun Nan Shumin Liu caihe Zhong Lin Qiao Huamin Zhang Xiangkun ma Department of materials Science and Engineering Dalian Maritime University Division of Energy Storage Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences

With the increasing demand for energy storage technology, iron-chromium flow batteries（IcFBs） have been widely concerned because of their price advantage. However, the low electrochemical activity of cr3+/cr2+redox couples and the side hydrogen evolution reaction limit the industrial application of IcFBs. A multi-dimensional Bi/carbon composite electrocatalyst（Bi@c）for IcFB is designed and prepared to improve the electrochemical activity of cr3+/cr2+redox couples. Benefiting by using the Bimetal organic framework（Bi-MOF） with solid matrix as precursors, Bi nanospheres are highly dispersed on the Bi@c electrocatalyst that effectively enhances the electrochemical activity. The special morphology of Bi@c electrocatalyst helps the transfer of electrons and ions, significantly reducing the polarization of battery. Herein, the 3D porous carbon frames accelerate mass transfer, and the 2D carbon nanobelts and carbon layer coating on 0D Bi nanospheres improve the conductivity of Bi nanospheres. Therefore, the IcFB with multi-dimensional Bi@c electrocatalyst exhibits coulombic efficiency of 98.10% and energy efficiency of 79.14% at 140 ma cm-2, which is higher than IcFBs with commercial graphite carbon electrocatalyst and with heat treatment carbon felt. This work provides a simple and economical method to fabricate a high-performance multidimensional Bi@c electrocatalyst for cr3+/cr2+redox couples, boosting the development of IcFBs.

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Staged dendrite suppression for high safe and stable lithium-sulfur batteries

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Journal of Energy chemistry 2025年第1期100卷 674-683页

作者： Jun Jiang Zhenjie Lu Yanwen Ding Shujun Liu Zhijie Qi Tian Tang Yunfan Zhang Zhiyuan ma Jingwen Sun Liang Xue Wenyao Zhang Pan Xiong Xin Wang Junwu Zhu Yongsheng Fu Key Laboratory for Soft chemistry and Functional materials of Ministry of Education Nanjing University of Science and Technology Jiangsu Pylon Battery co.Ltd

The unavoidable dendrite growth and shuttle effect have long been stranglehold challenges limiting the safety and practicality of lithium-sulfur ***,we propose a dual-action strategy to address the lithium dendrite issue in stages by constructing a multifunctional surface-negatively-charged nanodiamond layer with high ductility and robust puncture resistance on polypropylene （PP） *** uniformly loaded compact negative layer can not only significantly enhance electron transmission efficiency and promote uniform lithium deposition,but also reduce the formation of dendrite during early deposition *** importantly,under the strong puncture stress encountered during the deterioration of lithium dendrite growth under limiting current,the high ductility and robust puncture resistance（145.88 MPa） of as-obtained nanodiamond layer can effectively prevent short circuits caused by unavoidable lithium *** Li||Li symmetrical cells assembled with nanodiamond layer modified PP demonstrated a stable cycle of over 1000 h at 2 ma cm-2with a polarization voltage of only 29.3 ***,the negative charged layer serves as a physical barrier blocking lithium polysulfide ions,effectively mitigating capacity *** improved cells achieved a capacity decay of only 0.042%per cycle after 700 cycles at 3 c,demonstrating effective suppression of dendrite growth and capacity attenuation,showing promising prospect.

关键词： Ductility

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Design high-performance narrowband emitters for blue light-emitting diodes through manipulating resonance structure of aromatic heterocycles

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Science china chemistry 2025年

作者： Yue Yu Lei Xu Wenle Tan Yuyu Pan Jiyin Xiao Bohan Wang Guangjun Tian Yuguang ma Lei Ying Institute of Polymer Optoelectronic materials and Devices Guangdong Basic Research Center of Excellence for Energy and Information Polymer Materials State Key Laboratory of Luminescent Materials and Devices South China University of Technology School of Petrochemical Engineering Shenyang University of Technology Key Laboratory for Microstructural material Physics of Hebei Province School of Science Yanshan University

Narrowband light-emitting materials play critical roles in improving the color gamut and energy consumption of electroluminescence. Herein we demonstrated that by regulating the ground state resonance structure form of emitters with polycyclic aromatic heterocycles, the high-energy vibration of the c–c bond can be effectively suppressed, resulting in narrow emission like classical cyanine dyes. The designed compounds consist of twist and planar conformation, while having differences in the orientation of the positioning electron-donating(nitrogen) and electron-accepting(carbonyl) groups in the polycyclic aromatic hydrocarbon skeleton. The resulting compound Ac-Ph-Ac with a dominated zwitterionic resonance structure exhibits a relatively wide electroluminescent profile with the full width at half maximum(FWHM) of 42 nm and moderate device performance. In contrast, the “soliton transition” of 2AcPh based on the cyanine limit character effectively suppresses c–c stretching vibration in the polycyclic aromatic heterocycle skeleton, leading to a narrow electroluminescent profile with FWHM of 30 nm(0.16 eV)associated with an impressively high external quantum efficiency of 28.52%, which is among the highest efficiencies of so far reported non-sensitized organic light-emitting diodes.

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catalytic atroposelective synthesis of indolyl quinazolinones bearing N-N/c-c diaxes

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Science china chemistry 2025年

作者： Ning-Yi Wang Shuo Gao Zhu-Di Shu Bei-Bei cheng chun ma Yu-chen Zhang Feng Shi Research center of chiral Functional Heterocycles School of Chemistry and Materials Science Jiangsu Normal University School of Petrochemical Engineering Changzhou University School of chemistry and chemical Engineering Henan Normal University

The first catalytic atroposelective synthesis of indole derivatives bearing N-N/c-c diaxes has been established by the strategy of de novo ring formation. By this strategy, various indolyl quinazolinones bearing vicinal N-N/c-c diaxes were synthesized in high yields with overall good diastereoselectivities and excellent enantioselectivities via chiral phosphoric acid-catalyzed onepot asymmetric formal (5+1) cycloaddition/oxidation reaction. Moreover, such indolyl quinazolinones bearing vicinal N-N/cc diaxes have good configurational stability and could be converted into new chiral ligands with applications in asymmetric catalysis. Therefore, this work not only offered a new member for the family of diaxial atropisomers, but also provided a powerful strategy for catalytic asymmetric synthesis of atropisomers bearing N-N/c-c diaxes.

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c反应蛋白/白蛋白比值对2型糖尿病合并急性心肌梗死患者远期不良心脑血管事件的预测价值研究

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中国全科医学 2025年第6期28卷 705-712页

作者：马娟马盛宗燕茹马学平贾绍斌宁夏医科大学总医院心血管内科宁夏回族自治区银川市750000 宁夏回族自治区人民医院妇产科宁夏回族自治区银川市750000

背景急性心肌梗死(AMI)是威胁全球公众健康的主要原因之一。虽然已有相应的再灌注治疗策略,但AMI相关的主要不良心脑血管事件(maccEs)仍然是全世界人口死亡的原因之一。尤其合并糖尿病的AMI患者,因冠状动脉病变复杂,病变程度严重,尽早... 详细信息

背景急性心肌梗死(AMI)是威胁全球公众健康的主要原因之一。虽然已有相应的再灌注治疗策略,但AMI相关的主要不良心脑血管事件(maccEs)仍然是全世界人口死亡的原因之一。尤其合并糖尿病的AMI患者,因冠状动脉病变复杂,病变程度严重,尽早发现和判断该部分患者远期预后相对困难,因此寻找相对简便、易获得的实验室指标,有利于为2型糖尿病(T2DM)合并AMI患者经皮冠状动脉介入(PcI)术后maccEs的预测提供依据。目的探讨血清c反应蛋白(cRP)/白蛋白(Alb)比值(cAR)对T2DM合并AMI患者PcI术后远期maccEs的预测价值。方法纳入2014—2019年就诊于宁夏医科大学总医院心血管内科1683例T2DM合并AMI患者为研究对象,收集患者的一般临床资料与检查结果。对所有患者进行电话或门诊随访,以全因死亡、非致死性心肌梗死、再发不稳定型心绞痛、非致死性脑卒中、新发心力衰竭或心力衰竭加重再入院、再次血运重建作为maccEs。根据患者随访期间是否发生maccEs分为maccEs组(508例)和非maccEs组(1175例)。采用单因素及多因素Logistic回归分析探讨T2DM合并AMI患者maccEs事件的影响因素。采用Kaplan-Meier法绘制患者的生存曲线,生存曲线的比较采用Log-rank检验。采用受试者工作特征(ROc)曲线分析cAR对T2DM合并AMI患者远期发生maccEs的预测效能,使用净重分类改善指标(NRI)和综合判别指数(IDI)评价cAR对T2DM合并AMI患者预后评估的改善效果。结果1683例患者中508例(30.18%)患者发生maccEs。多因素Logistic回归分析显示高血压病[OR(95%cI)=1.994(1.142~3.483)]、冠状动脉植入支架长度[OR(95%cI)=1.031(1.002~1.062)]、cRP[OR(95%cI)=0.950(0.915~0.986)]、Alb[OR(95%cI)=0.933(0.880~0.989)]及cAR[OR(95%cI)=5.582(1.705~18.277)]是T2DM合并AMI患者PcI术后发生maccEs的影响因素(PcAR中位表达水平(0.86),将患者分为cARcAR≥0.86组,Log-rank检验结果显示,cAR≥0.86组maccEs发生率高于cARc曲线显示cAR预测T2DM合并AMI患者发生maccEs的ROc曲线下面积为0.728(95%cI=0.702~0.754),最佳截断值为0.576,灵敏度为0.617,特异度为0.747。在基线模型基础上,与cRP、Alb相比,cAR能明显改善对患者发生maccEs的预测效果(NRI=0.377,IDI=0.166,c指数=0.690;PcAR是T2DM合并AMI患者PcI术后远期maccEs发生风险的有效预测指标。

关键词：心肌梗死糖尿病,2型主要不良心脑血管事件 c反应蛋白白蛋白预测

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Nitrogen addition promotes soil carbon accumulation globally

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Science china Life Sciences 2025年第1期 284-293页

作者： Xuemei Yang Suhui ma Erhan Huang Danhua Zhang Guoping chen Jiangling Zhu chengjun Ji Biao Zhu Lingli Liu Jingyun Fang Institute of Ecology College of Urban and Environmental Sciencesand Key Laboratory for Earth Surface Processes of the Ministry of EducationPeking University Ministry of Education Key Laboratory for Transboundary Ecosecurity of Southwest china School of Ecology and Environmental ScienceYunnan University State Key Laboratory of Vegetation and Environmental change Institute of BotanyChinese Academy of Sciences

Soil is the largest carbon(c) reservoir in terrestrial ecosystems and plays a crucial role in regulating the global c cycle and climate *** nitrogen(N) deposition has been widely considered as a critical factor affecting soil organic carbon(SOc) storage, but its effect on SOc components with different stability remains unclear. Here, we analyzed extensive empirical data from 304 sites worldwide to investigate how SOc and its components respond to N addition. Our analysis showed that N addition led to a significant increase in bulk SOc(6.7%), with greater increases in croplands(10.6%) and forests(6.0%) compared to grasslands(2.1%). Regarding SOc components, N addition promoted the accumulation of plant-derived c(9.7%–28.5%) over microbial-derived c(0.2%), as well as labile(5.7%) over recalcitrant components(–1.2%), resulting in a shift towards increased accumulation of plant-derived labile c. consistently, N addition led to a greater increase in particulate organic c(11.9%) than mineral-associated organic c(3.6%), suggesting that N addition promotes c accumulation across all pools, with more increase in unstable than stable pools. The responses of SOc and its components were best predicted by the N addition rate and net primary productivity. Overall, our findings suggest that N enrichment could promote the accumulation of plant-derived and non-mineral associated c and a subsequent decrease in the overall stability of soil c pool, which underscores the importance of considering the effects of N enrichment on SOc components for a better understanding of c dynamics in soils.

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Diabetes empowerment scores among type 2 diabetes mellitus patients and its correlated factors: A cross-sectional study in a primary care setting in malaysia

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World Journal of Diabetes 2019年第7期10卷 403-413页

作者： thew Hui Zhu ching Siew Mooi Nurainul Hana Shamsuddin ching Siew Mooi Department of Family Medicine Faculty of Medicine and Health Sciences Universiti Putra Malaysia malaysian Research Institute on Ageing Universiti Putra Malaysia Department of Medical Sciences School of Healthcare and Medical Sciences Sunway University

BAcKGROUND There are limited studies on diabetes empowerment among type 2 diabetes patients,particularly in the primary care *** To assess the diabetes empowerment scores and its correlated factors among type 2 diabetes patients in a primary care clinic in *** This is a cross sectional study involving 322 patients with type 2 diabetes mellitus(DM)followed up in a primary care *** sampling method was used for patient *** Diabetes Empowerment Scale(DES)questionnaire was used to measure patient *** consists of three domains:(1)managing the psychosocial aspect of diabetes(9 items);(2)Assessing dissatisfaction and readiness to change(9 items);and(3)Setting and achieving diabetes goal(10 items).A score was considered high if it ranged from 100 to *** analysis was performed using SPSS version 25 and multiple linear regressions was used to identify the predictors of total diabetes empowerment *** The median age of the study population was 55 years old.56%were male and the mean duration of diabetes was 4 *** total median score of the DES was 110[interquartile range(IQR)=10].The median scores of the three subscales were 40 with(IQR=4)for"managing the psychosocial aspect of diabetes";36 with(IQR=3)for"Assessing dissatisfaction and readiness to change";and 34 with(IQR=5)for"Setting and achieving diabetes goal".According to multiple linear regressions,factors that had significant correlation with higher empowerment scores among type 2 diabetes patients included an above secondary education level(Pcation exposure(P=0.003),lack of ischemic heart disease(P=0.017),and lower glycated hemoglobin(HbA1c)levels(PcONcLUSION Diabetes empowerment scores were high among type 2 diabetes patients in this study *** for high empowerment scores included above secondary education level,diabetes education exposure,lack of ischemic heart disease status and lower HbA1c.

关键词： Diabetes Empowerment Scores Diabetes Empowerment Scale Type 2 diabetes Primary care malaysia

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Studies on Different Hydrolysis Procedures for Drugs of Abuse in Hair

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chinese chemical Letters 1999年第3期10卷 239-242页

作者： ma, c Zhou, TH chinese Acad Med Sci Inst Mat Med Beijing 100050 Peoples R China Peking Union Med coll Beijing 100050 Peoples R China

Different hydrolysis and extraction procedures have been studied for the determination of drugs of abuse in hair samples. The results showed that acid and enzymatic hydrolysis gave high extraction recoveries for 6-monoacetylmorphine, morphine, codeine and heroin. Enzymatic hydrolysis was more expensive. After alkaline hydrolysis, 6-monoacetylmorphine, a unique proof of heroin abuse, could not be detected and after methanolic extraction, the extract was dirty and the obtained chromatogram showed an interfering background. It is concluded that acid hydrolysis is the extraction method of choice.

关键词： drugs of abuse hydrolysis hair

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